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Latest revision as of 22:35, 15 July 2022
Testing of opamps for Eurocrack module
method of testing
- sine wave from Doeper A-147 VCLFO module
- schematic for +/-5V to 3.3V in breadboard
- most opamps were tested with a 33k resistor from output to inverting input of the opamp. the best opamp was also tried with 30k ohm.
- most opamps showed clipping
TL072
- datasheet: https://www.ti.com/product/TL072
LM358P
MCP6002
Also tried with 30k resistor as with 33k, the ADC used (MCP3008) clipped too much:
